ES2403371T3 - Blanqueo de pasta papelera - Google Patents

Blanqueo de pasta papelera Download PDF

Info

Publication number
ES2403371T3
ES2403371T3 ES07808867T ES07808867T ES2403371T3 ES 2403371 T3 ES2403371 T3 ES 2403371T3 ES 07808867 T ES07808867 T ES 07808867T ES 07808867 T ES07808867 T ES 07808867T ES 2403371 T3 ES2403371 T3 ES 2403371T3
Authority
ES
Spain
Prior art keywords
chlorine dioxide
pulp
bleaching
stage
paper pulp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
ES07808867T
Other languages
English (en)
Spanish (es)
Inventor
Magnus BJÖRKLUND
Thomas Christopher Greschik
Håkan FÄGERSTEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Akzo Nobel NV
Nouryon Pulp and Performance Chemicals AB
Original Assignee
Akzo Nobel NV
Eka Chemicals AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=37807769&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2403371(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Akzo Nobel NV, Eka Chemicals AB filed Critical Akzo Nobel NV
Application granted granted Critical
Publication of ES2403371T3 publication Critical patent/ES2403371T3/es
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/142—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 in a multistage process involving ClO2/Cl2 exclusively

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
ES07808867T 2006-10-11 2007-09-06 Blanqueo de pasta papelera Active ES2403371T3 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP06122119 2006-10-11
EP06122119 2006-10-11
PCT/SE2007/050630 WO2008044988A1 (en) 2006-10-11 2007-09-06 Bleaching of pulp

Publications (1)

Publication Number Publication Date
ES2403371T3 true ES2403371T3 (es) 2013-05-17

Family

ID=37807769

Family Applications (1)

Application Number Title Priority Date Filing Date
ES07808867T Active ES2403371T3 (es) 2006-10-11 2007-09-06 Blanqueo de pasta papelera

Country Status (12)

Country Link
EP (1) EP2082096B1 (pt)
AR (1) AR063160A1 (pt)
BR (1) BRPI0719893A2 (pt)
CA (1) CA2665969C (pt)
CL (1) CL2007002906A1 (pt)
EA (1) EA013901B1 (pt)
ES (1) ES2403371T3 (pt)
NO (1) NO20091815L (pt)
PT (1) PT2082096E (pt)
UY (1) UY30634A1 (pt)
WO (1) WO2008044988A1 (pt)
ZA (1) ZA200903205B (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20105862A0 (fi) 2010-08-18 2010-08-18 Bo Akademi University Menetelmä hekseeniuronihappojen poistamiseksi
EP3030710B1 (en) 2013-08-09 2017-10-11 Novozymes A/S Reducing content of hexenuronic acids in cellulosic pulp

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3501374A (en) * 1968-12-26 1970-03-17 Hooker Chemical Corp Sequential bleaching of kraft pulp with chlorine dioxide and chlorine
US5268075A (en) * 1989-10-19 1993-12-07 North Carolina State University High efficiency two-step, high-low pH chlorine dioxide pulp bleaching process
US5030324A (en) * 1990-01-29 1991-07-09 Champion International Corporation Sequential bleaching procedure using chlorine and chlorine dioxide in a first chlorination stage of a multistage bleaching process
US6776876B1 (en) * 1994-10-13 2004-08-17 Andritz Oy Method of treating cellulosic pulp to remove hexenuronic acid
FI119383B (fi) * 1998-03-06 2008-10-31 Andritz Oy Menetelmä massan käsittelemiseksi
WO2002099186A1 (en) * 2001-06-06 2002-12-12 Kvaerner Pulping Ab Reduction of organically bound chlorine formed in chlorine dioxide bleaching
US20060201642A1 (en) * 2005-03-08 2006-09-14 Andritz Inc. Methods of treating chemical cellulose pulp

Also Published As

Publication number Publication date
WO2008044988A1 (en) 2008-04-17
ZA200903205B (en) 2010-03-31
AR063160A1 (es) 2008-12-30
NO20091815L (no) 2009-07-10
EA013901B1 (ru) 2010-08-30
BRPI0719893A2 (pt) 2014-05-06
CL2007002906A1 (es) 2008-05-02
PT2082096E (pt) 2013-04-26
CA2665969C (en) 2016-04-12
EA200970367A1 (ru) 2009-08-28
UY30634A1 (es) 2007-11-30
EP2082096B1 (en) 2013-02-20
CA2665969A1 (en) 2008-04-17
EP2082096A1 (en) 2009-07-29

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